You can do a lot with a lake that size, Bullhead. The HSB are a good idea; they'll definitely help with controlling the bluegill. But if you like the idea of pike, they're a more aggressive predator than HSB, and also get quite a bit bigger than the former; if your bluegill are overpopulated now, and it sounds like almost certainly they are, the pike will right that situation within a year or two, if not sooner.
Definitely bug Bruce about getting some of his bluegill - I'm about to put some of them in a couple of TN phosphate pits I'm working with. If you don't have any feeders, you could start with three or four; it could get expensive to put one per acre initially. Moultrie does make a good model for under $100 though it only holds 25 pounds of food; they have a model that holds 100 pounds that is $130 from Native Outdoors. You won't get the full benefit of his bluegill without feeders, as he breeds them to aggressively take pellet food, which of course translates to faster growth.
Keep me posted on what you do - would love to hear the plan unfold (and lead to 12" bluegills).
